Amitabh a troublesome child: Abhishek

The film Paa, in which Amitabh Bachchan plays a patient of a rare disorder called progeria is not an educational movie, but in fact an "emotional story about a father and son", says director R Balki.

While promoting the film along with its stars Abhishek Bachchan and Vidya Balan at an Andheri cinema hall, Balki said: "This is a family drama where incidentally Amitabh Bachchan, who is suffering from progeria, plays the role of Abhishek's son. This movie is not about educating people on progeria."

"It is an emotional story about a father and son."